6.3.5 Installing a fuel injection pump ................................................................ 235
6.3.6 Adjusting fuel injection timing.................................................................. 235
6.3.7 Troubleshooting of fuel injection pump ................................................... 236
6.4 Fuel injection nozzle ........................................................................................... 237
6.5 Fuel Filter ............................................................................................................ 239
6.5.1 Fuel filter for 3JH4E and 4JH4E.............................................................. 239
6.5.2 Fuel filter for 4JH4-TE and 4JH4-HTE .................................................... 240
6.6 Fuel tank ............................................................................................................. 241
7. Intake and exhaust system .......................................................................................... 242
7.1 Intake system ...................................................................................................... 242
7.1.1 3JH4E and 4JH4E................................................................................... 242
7.1.2 4JH4-TE .................................................................................................. 242
7.1.3 4JH4-HTE ............................................................................................... 242
7.1.4 Breather system (A reductor to intake air system of blowby gas) ........... 243
7.1.5 Diaphragm assy inspection (only for 3JH4E and 4JH4E) ....................... 244
7.2 Exhaust system .................................................................................................. 245
7.2.1 Exhaust system for 3JH4E and 4JH4E ................................................... 245
7.2.2 Exhaust system for 4JH4-TE and 4JH4-HTE.......................................... 246
7.2.3 Mixing elbow inspection .......................................................................... 246
7.3 Turbocharger ...................................................................................................... 247
8. Lubrication system ....................................................................................................... 252
8.1 Lubrication system .............................................................................................. 252
8.2 Lube oil pump ..................................................................................................... 253
8.2.1 Lube oil pump construction ..................................................................... 253
8.2.2 Specifications of lube oil pump................................................................ 253
8.2.3 Lube oil pump disassembly and reassembly .......................................... 254
8.2.4 Lube oil pump inspection ........................................................................ 255
8.2.5 Oil pressure control valve construction ................................................... 256
8.3 Lube oil filter ....................................................................................................... 257
8.3.1 Lube oil filter construction ....................................................................... 257
8.3.2 Lube oil filter replacement ....................................................................... 257
8.4 Lube oil cooler .................................................................................................... 258
8.4.1 Lube oil cooler construction .................................................................... 258
8.4.2 Inspecting the lube oil cooler................................................................... 258
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